Kinetic Isotherm of the Adsorption of Potassium Chloride on the Surfaces of Biochar Particles Prepared from the Solid Residues of the Olive Mill

International Journal of Agriculture & Environmental Science
© 2020 by SSRG - IJAES Journal
Volume 7 Issue 4
Year of Publication : 2020
Authors : Ali Zidan, Ali Muhammad Haider
How to Cite?

Ali Zidan, Ali Muhammad Haider, "Kinetic Isotherm of the Adsorption of Potassium Chloride on the Surfaces of Biochar Particles Prepared from the Solid Residues of the Olive Mill," SSRG International Journal of Agriculture & Environmental Science, vol. 7,  no. 4, pp. 78-84, 2020. Crossref,


The aim of this work, was to study the kinetics of adsorption of biochar particles prepared from the biomass of solid residues of the olive mill, in KCl solution, (KCl/BioC), system to be adopted to predict the default values of adsorption.
The experiment included the use of the biochar as a solid phase and source for adsorption surfaces in this system, where 3 equations were tested to model the resulted equilibrium data, in order to test their suitability for application in this system .
It was found that this adsorption kinetics isotherm follows a straight line positive relationship expressed very efficiently by first order equation, (R2 = 0.996), then Freundlich logarithmic equation (R2 = 0.968), within the limits of the experimental points of KCl concentrations in the liquid phase less than 60 meq/liter. But an application of a default secondorder equation for this system proved to be more expressive for all values of concentrations, where the correlation coefficient for this equation recorded high accuracy (R2 = 0.999), also it allows to predict any hypothetical value of adsorption for any KCl concentration in the solution including the maximum adsorption level.


Biochar, Adsorption, desorption, Olive mills, Freundlich, KCl/BioC system.


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